Problem with CS gate room teleport

[dodo2000107]

At the top of the CS there is the gate room teleport. For some reason, it seems not to work for me, but it works for the others. I walk through it, back and forth, nothing happens. I crouch through it, as suggested by laserhog, a whitness, and still nothing. So is there any way you could help me with this, or is this just beyond comprehension?
Thank you,

Dodo2000107

[HeinzPeter]

Make sure you are using the official version of the game.
I can't help you. Sorry, just try it again - should work..

[dodo2000107]

I am sorry for giving you trouble. It seems the problem was caused by the finiteliquid mod. "Make sure you are using the official version of the game." reminded me that i had edited minecraft.jar. I put in a clean copy and it works fine.

[Stxyzth]

Fixed.